On a given day 280 people jaywalk across a busy intersection

On a given day, 280 people jaywalk across a busy intersection. Fifty percent of these people are male. Eighty percent are university undergraduate students and 40% are female university undergraduate students. A person is hit by a car while jaywalking across the intersection. We can see that the person is female. What is the probability that the victim is a university undergraduate student?

Solution

What is the probability that the victim is a university undergraduate student?

0.50 * 0.80   +   0.50 * 0.40

0.6

60%